If I have a machine with an existing tunnel to Hurricane Electric as my main tunnel and SixXS as a second tunnel that I'd eventually like to migrate to, is there a way to configure my routes to send return traffic from SixXS over that tunnel? I've tried this with routes in the following manner (on OpenBSD 4.7): route -n add -inet6 default 2001:470:c:aa::1 route -n add -inet6 -net 2001:1938::0 -prefixlen 32 2001:1938:81:16a::1 I can ping my next-hop without the route, but I can't traceroute6 when I specify my source address as my end of the SixXS tunnel. If I try and traceroute6 into SixXS network somewhere (just the 2001:1938::1), I get admin prohibited by the SixXS end of the tunnel: # traceroute6 -s 2001:1938:81:16a::2 2001:1938::1 traceroute6 to 2001:1938::1 (2001:1938::1) from 2001:1938:81:16a::2, 64 hops max, 12 byte packets 1 cl-363.phx-01.us.sixxs.net 2995.39 ms !A 2998.32 ms !A 2999.9 ms !A So, does anyone have a dual tunnel configuration? If so, how do you deal with incoming ICMP requests from SixXS? Right now my packet loss on those checks is at 100-percent, but I'm quite certain everything is working on the interfaces. I imagine the return route isn't correct. Thanks.